Hydromette
®
BL Compact TF-IR 2
30
9.3
Equilibrium wood moisture content (EMC)
Equilibrium wood moisture content is the moisture content adopted by the wood when it is exposed
to constant climate (constant humidity and constant temperature) for sufficiently long time.
The device can simultaneously display relative humidity, temperature, and equilibrium wood
moisture content. This makes it easier for parquet installers and interior finishers to assess whether
wooden components may be exposed to the existing ambient climate or whether damage to the
wood, such as cracking, shrinkage or swelling, is to be expected.
9.4
Measuring air temperature
The response speed of the sensor is very high, so that even small air flows (door gap, leaky window,
etc.) influence the measured value display. An absolute standstill of the display can therefore only be
achieved in a climate box. The sensor also adapts to the ambient climate in the storage state (device
not switched on).
The setting time of the air temperature sensor in moving air is approx. 3 minutes for 90% of the
temperature difference.
False measurements can arise from shielding with body parts (e.g. hand) as well as blowing or
speaking/breathing in the direction of the sensor.
Attention:
The measuring instrument may only be exposed to temperatures above 50 °C for short periods.
9.5
Dew point temperature
The dew point is the temperature at which the air is saturated with water vapour. The relative
humidity is then 100%. If this dew point temperature is undershot, the moisture contained in the air
condenses on a component / surface. The dew point temperature is generally lower than the air
temperature, except at 100% r.h. where both temperatures are the same.
The display of the calculated dew point in the measuring modes "Dew point IR" (rh / Ir / dp) and
"Dew point, dp" (rh / t / dp) is based on the relative humidity and air temperature parameters. A dew
point table for calculating condensation is also provided in the Appendix.
